Definition of ombudsman in English:

noun (plural ombudsmen)

These failures in human communication feature in many of the complaints investigated by the ombudsman's office.

To tackle the issue, Wang requested that the city government recruited more consumer ombudsmen to investigate such cases, noting that Taipei has only one consumer ombudsman, while Taipei County has three.

Last year, the number of complaints to the pensions ombudsman increased by a third.

Origin

There are not many words in English that come directly from Swedish, but this is one of them. In the 1950s we adopted the Swedish word for ‘legal representative’ as a term for an official appointed to investigate individual complaints against companies or the government, though the British Parliamentary Commissioner for Administration, as the office is formally known, dates from 1967.